Which of the following statements is TRUE?

Question

The different isotopes of an element are always equally abundant.

Atoms of different elements may have the same mass numbers.

The identify of an atom cannot be determined solely by its atomic number.

O Atoms of different elements can contain the same number of protons.

The identify of an isotope cannot be determined solely by its mass number.

Answer 1

Atoms of different elements may have the same mass numbers.